Hi,
If I had to hazard a guess the kernel/driver in Trisquel 7 does not have good
support for your USB controller. The Ubuntu version you installed probably
has a newer kernel which would explain why it works in one and not the other.
The bluetooth adapters we sell have support going back many many years and I
can't recall a single support incident in recent times. That doesn't mean
there aren't any scenarios where you couldn't run into a problem- but it's
almost certainly not the adapter at fault here.
So why would the kernel upgrade have failed? Well, I'd probably check to
verify that the kernel your booting up with is in fact been upgraded to at
least that of the Ubuntu installed where the adapter was working. Chances are
the kernel upgrade failed.
Now if it is in fact the same there is no reason it shouldn't work at that
point unless the adapter has died. At least in theory. Should be easy to test
simply by testing it Ubuntu again.
OK- so it's possible the bluetooth adapter died as a result of the flaky USB
controller. If that is the case send support an email and we can exchange it.
Just make sure you've upgraded to a recent kernel version before trying the
replacement adapter. These flaky controllers do have a tendency to kill
peripherals you attach to them.
If you do find that the adapter works in Ubuntu still I'm going to have to
assume it's some sort of user-related issue-or maybe related to the bluetooth
profile needed for the device your connecting. It might be for example that
the bluetooth profile for the device isn't supported by Trisquel 7. There is
another component if I'm not mistaken which runs on top of the kernel layer
which enables you to connect to the given bluetooth device itself. This is
separate from the kernel driver for the bluetooth adapter. Ubuntu will still
have a newer version here as you've only upgraded the kernel component and
not the bluetooth profiles. I'm actually not entirely sure if or at least it
may not be a good idea to upgrade to a newer version. That can often create
problems and I've not investigated the level of risk which may or may not be
involved in upgrading this component.